body {
    font-family: Arial, sans-serif;
    background: #f5f6fa;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}
.container {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    text-align: center;
}
h1 {
    color: #333;
    margin-bottom: 16px;
}
p {
    color: #666;
    margin-bottom: 32px;
}
.btn {
    display: inline-block;
    padding: 12px 32px;
    margin: 0 10px;
    background: #3498db;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s;
}
.btn:hover {
    background: #217dbb;
}